Among Tuesday's best Web stories for investors: myths about China's communist party, food stocks that could be poised to double this year, tips for making your own viral video and funny financial predictions for 2011.

The Girl Scouts have sold cookies since their early years, bringing in $700 million a year. But sales slipped about 1% last year, prompting the group to look for new ways to get its message across. The result? They've posted a video on YouTube called "What can a cookie do?" which has attracted about 24,000 hits.